发明名称 |
Pixel sensor column amplifier architecture |
摘要 |
A pixel column amplifier architecture creates a reduced noise differential image signal from an pixel sensor array. The pixel column amplifier architecture comprises a first double sampling (DS) circuit and a second DS circuit that has the same configuration as the first DS circuit. An image signal containing a combination of noise components created on a substrate is coupled to the first DS circuit. A reference image signal, held in a reset state, represents the noise component of the image signal and is coupled to the second DS circuit. Further, a reference voltage source is coupled to a reference input of both the first DS and the second DS circuits. The first DS circuit provides the first side of the differential image signal, and the second DS circuit provides the second side of the differential image signal.
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申请公布号 |
US6476864(B1) |
申请公布日期 |
2002.11.05 |
申请号 |
US19980076014 |
申请日期 |
1998.05.11 |
申请人 |
AGILENT TECHNOLOGIES, INC. |
发明人 |
BORG MATTHEW M.;MOORE CHARLES E. |
分类号 |
H04N5/335;H01L27/146;H04N5/217;(IPC1-7):H04N9/64 |
主分类号 |
H04N5/335 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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